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3 years ago

PLSSSSS HELP!!!!!!!!!

Mathematics

1 answer:

Anna11 [10]3 years ago

6 0

Answer:

x=30º

∠CAB=60°

∠ACB=80°

Step-by-step explanation:

Because the angles of every triangle add up to 180º, we know that:

$2x+20+2x=180-40\\ 4x=180-40-20\\ 4x=180-60\\ 4x=120\\ x=\frac{120}{4}$

x=30º

Plug that in for x on both angles, and you will get

∠CAB=60°

∠ACB=80°

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Please help meee :((

astra-53 [7]

Answer:

49 +80= 129

180 - 129= 51

Opposite are equal.

Extend line of QR - so, the x shape made can be used to calculate what x is.

51 + 51 = 102

Reflex angles adds to 360

360-102= 258 of the other opposite angles left.

258/2 = 129 since opposite angles are equal.

Answer is 129 degrees

Hope this helps!

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Answer:

The factors of given quadratic equation

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Step-by-step explanation:

Explanation:-

Given quadratic equation 15x² +39 x -18 =0

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The quadratic equation 15x² +39 x -18 =0

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Step-by-step explanation:

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